*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#0ea5e9;--primary-dark:#0284c7;--primary-light:#38bdf8;--success:#10b981;--danger:#ef4444;--warning:#f59e0b;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-500:#6b7280;--gray-700:#374151;--gray-900:#111827;--radius:8px;--shadow:0 1px 3px rgba(0,0,0,.1);--shadow-lg:0 10px 30px rgba(0,0,0,.15)}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--gray-900);background:#fff;line-height:1.6}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.site-banners{width:100%;text-align:center}
.site-banner{padding:12px 20px;font-size:18px;font-weight:700;text-align:center;letter-spacing:1px;box-shadow:0 2px 4px rgba(0,0,0,.1)}
.site-header{background:#fff;border-bottom:1px solid var(--gray-200);position:sticky;top:0;z-index:100;box-shadow:var(--shadow)}
.site-header .container{display:flex;align-items:center;height:64px;gap:30px}
.logo{font-size:22px;font-weight:700;color:var(--primary);white-space:nowrap}
.main-nav{display:flex;gap:24px;flex:1}
.main-nav a{color:var(--gray-700);font-size:15px;font-weight:500}
.main-nav a:hover{color:var(--primary);text-decoration:none}
.header-actions{display:flex;gap:10px;align-items:center}
.btn{display:inline-block;padding:10px 24px;border-radius:var(--radius);font-size:15px;font-weight:500;border:none;cursor:pointer;transition:all .2s;text-decoration:none;background:var(--primary);color:#fff}
.btn:hover{background:var(--primary-dark);text-decoration:none;color:#fff}
.btn-sm{padding:6px 16px;font-size:14px}
.btn-lg{padding:14px 36px;font-size:17px}
.btn-outline{background:transparent;color:var(--primary);border:1px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-success{background:var(--success)}.btn-success:hover{background:#059669;color:#fff}
.btn-danger{background:var(--danger)}.btn-danger:hover{background:#dc2626;color:#fff}
.btn-block{display:block;width:100%;text-align:center}
.site-main{min-height:calc(100vh - 200px)}
.alert{padding:12px 20px;border-radius:var(--radius);margin:20px auto;max-width:1200px}
.alert-success{background:#d1fae5;color:#065f46;border:1px solid #6ee7b7}
.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}
.hero{background:linear-gradient(135deg,#0ea5e9 0%,#0284c7 100%);color:#fff;padding:80px 0;text-align:center}
.hero h1{font-size:48px;font-weight:700;margin-bottom:20px}
.hero p{font-size:20px;opacity:.9;margin-bottom:40px;max-width:600px;margin-left:auto;margin-right:auto}
.hero-actions{display:flex;gap:16px;justify-content:center}
.hero-actions .btn{background:#fff;color:var(--primary)}
.hero-actions .btn:hover{background:var(--gray-100)}
.hero-actions .btn-outline{background:transparent;color:#fff;border-color:#fff}
.hero-actions .btn-outline:hover{background:rgba(255,255,255,.15);color:#fff}
.section{padding:70px 0}
.section-gray{background:var(--gray-50)}
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:36px;font-weight:700}
.section-title p{font-size:18px;color:var(--gray-500);margin-top:10px}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.feature-card{background:#fff;border:1px solid var(--gray-200);border-radius:12px;padding:30px;text-align:center;transition:all .3s}
.feature-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--primary-light)}
.feature-card .icon{font-size:48px;margin-bottom:16px}
.feature-card h3{font-size:20px;font-weight:600;margin-bottom:10px}
.feature-card .subtitle{color:var(--primary);font-size:14px;margin-bottom:12px;font-weight:500}
.feature-card p{color:var(--gray-500);font-size:15px}
.cta-section{background:var(--primary);color:#fff;padding:60px 0;text-align:center}
.cta-section h2{font-size:32px;margin-bottom:20px}
.cta-section .btn{background:#fff;color:var(--primary)}.cta-section .btn:hover{background:var(--gray-100)}
.site-footer{background:var(--gray-900);color:var(--gray-300);padding:50px 0 30px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;margin-bottom:30px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col ul{list-style:none}.footer-col li{margin-bottom:8px;font-size:14px}
.footer-col a{color:var(--gray-300)}.footer-col a:hover{color:#fff}
.footer-col p{font-size:14px;line-height:1.8}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid var(--gray-700);font-size:14px}
.form-card{max-width:420px;margin:40px auto;background:#fff;border:1px solid var(--gray-200);border-radius:12px;padding:40px;box-shadow:var(--shadow)}
.form-card h2{text-align:center;margin-bottom:30px;font-size:24px}
.form-group{margin-bottom:20px}
.form-group label{display:block;margin-bottom:6px;font-weight:500;font-size:14px;color:var(--gray-700)}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 14px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:15px;transition:border-color .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,165,233,.1)}
.form-group .hint{font-size:13px;color:var(--gray-500);margin-top:4px}
.form-group .error{font-size:13px;color:var(--danger);margin-top:4px}
.form-footer{text-align:center;margin-top:20px;font-size:14px;color:var(--gray-500)}
.admin-layout{display:flex;min-height:calc(100vh - 64px)}
.admin-sidebar{width:220px;background:var(--gray-900);color:var(--gray-300);padding:20px 0;flex-shrink:0}
.admin-sidebar a{display:block;padding:10px 24px;color:var(--gray-300);font-size:15px}
.admin-sidebar a:hover,.admin-sidebar a.active{background:var(--primary);color:#fff;text-decoration:none}
.admin-content{flex:1;padding:30px;background:var(--gray-50)}
.admin-content h1{margin-bottom:24px;font-size:28px}
.card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius);padding:24px;margin-bottom:20px;box-shadow:var(--shadow)}
.card h3{margin-bottom:16px;font-size:18px;border-bottom:1px solid var(--gray-200);padding-bottom:10px}
table.data-table{width:100%;border-collapse:collapse}
table.data-table th,table.data-table td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--gray-200);font-size:14px}
table.data-table th{background:var(--gray-50);font-weight:600}
table.data-table tr:hover{background:var(--gray-50)}
.badge{display:inline-block;padding:3px 10px;border-radius:12px;font-size:12px;font-weight:500}
.badge-success{background:#d1fae5;color:#065f46}
.badge-warning{background:#fef3c7;color:#92400e}
.badge-danger{background:#fee2e2;color:#991b1b}
.badge-info{background:#dbeafe;color:#1e40af}
.badge-gray{background:var(--gray-100);color:var(--gray-700)}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:30px}
.stat-card{background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.stat-card .label{font-size:14px;color:var(--gray-500);margin-bottom:8px}
.stat-card .value{font-size:28px;font-weight:700}
.balance-card{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-radius:12px;padding:30px;margin-bottom:20px}
.balance-card .label{font-size:16px;opacity:.9}
.balance-card .value{font-size:42px;font-weight:700;margin:10px 0}
.balance-card .actions{display:flex;gap:10px;margin-top:20px}
.balance-card .btn{background:rgba(255,255,255,.2);color:#fff}
.balance-card .btn:hover{background:rgba(255,255,255,.3)}
@media(max-width:768px){
    .site-header .container{flex-wrap:wrap;height:auto;padding:12px 20px}
    .main-nav{order:3;width:100%;flex-wrap:wrap;gap:12px;padding-top:12px}
    .hero h1{font-size:32px}.hero p{font-size:16px}
    .features-grid{grid-template-columns:1fr}
    .admin-layout{flex-direction:column}.admin-sidebar{width:100%}
}